Patents by Inventor Hiroshi Obata
Hiroshi Obata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140133432Abstract: The invention avoids unnecessary transmission of signals, and shortens time for establishing a bearer for a UE. A mobile communication method of an embodiment includes the steps of: notifying, by a P-CSCF, when the P-CSCF receives a SIP signal #1, a PCRF of QoS corresponding to a SDP-A included in the SIP signal #1; transmitting, by the PCRF, a bearer establishment instruction signal #1 to an EPC on the basis of the QoS; and keeping the P-CSCF, when the P-CSCF receives a SIP signal #2 and the SDP-A included in the SIP signal #1 is the same as a SDP-B included in the SIP signal #2, from notifying the PCRF of the QoS corresponding to the SDP-B.Type: ApplicationFiled: June 22, 2012Publication date: May 15, 2014Applicant: NTT DOCOMO, INC.Inventors: Hiroshi Obata, Kazuhito Tokunaga, Itsuma Tanaka
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Patent number: 8681293Abstract: Provided is a liquid crystal display device in which uneven brightness in a side-light type backlight unit is reduced, the uneven brightness being generated through reflection of light from a light source at an interface of an engaging cutout portion for preventing a light guide plate from shifting. A light guide plate (60) includes a cutout portion (82) through which a light guide plate support pin (80) provided upright to a lower frame fitting is inserted, at a lower side adjacent to a left side at which a light bar (64) is arranged. Further, at the lower side, a cutout portion (84) having a shallower recess than that of the cutout portion (82) and positioned in front of the cutout portion (82) when viewed from the light bar (64) is provided.Type: GrantFiled: September 12, 2012Date of Patent: March 25, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hiroshi Obata, Makoto Fujimoto, Shunsuke Morishita, Naruhiro Matsumoto
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Publication number: 20130083270Abstract: Provided is a liquid crystal display device in which uneven brightness in a side-light type backlight unit is reduced, the uneven brightness being generated through reflection of light from a light source at an interface of an engaging cutout portion for preventing a light guide plate from shifting. A light guide plate (60) includes a cutout portion (82) through which a light guide plate support pin (80) provided upright to a lower frame fitting is inserted, at a lower side adjacent to a left side at which a light bar (64) is arranged. Further, at the lower side, a cutout portion (84) having a shallower recess than that of the cutout portion (82) and positioned in front of the cutout portion (82) when viewed from the light bar (64) is provided.Type: ApplicationFiled: September 12, 2012Publication date: April 4, 2013Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Hiroshi OBATA, Makoto FUJIMOTO, Shunsuke MORISHITA, Naruhiro MATSUMOTO
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Patent number: 8339540Abstract: A reflection sheet is made of material having a coefficient of thermal expansion different from that of an LED substrate. A fixing member and a retaining member extend through the reflection sheet and the LED substrate so as to fix the reflection sheet and the LED substrate. The reflection sheet includes a fixing hole into which the fixing member is inserted, a retaining hole into which the retaining member is inserted, and LED holes within which light emitting diodes are disposed, respectively. Retaining of the reflection sheet by the retaining member has, compared to fixing of the reflection sheet by the fixing member, a higher degree of freedom of movement in a direction along a surface of the reflection sheet. The LED holes located in positions far from the fixing hole are larger than the LED holes located in positions close to the fixing hole.Type: GrantFiled: May 24, 2011Date of Patent: December 25, 2012Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Makoto Fujimoto, Hiroshi Obata
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Publication number: 20120139527Abstract: Electrical current transducer comprising a measuring circuit (6) and an inductor (4) for measuring a primary current IP flowing in a primary conductor (2), the inductor comprising a saturable magnetic core (10) made of a highly permeable magnetic material and a secondary coil (12) for carrying an alternating excitation i configured to alternatingly saturate the magnetic core, the coil being connected to the measuring circuit. The measuring circuit is configured to measure a mean value of the excitation current in the secondary coil and determine therefrom a value of the primary current for small current amplitudes, the measuring circuit being further configured for evaluating the frequency of the excitation current i and determining therefrom the value of the primary current for large currents.Type: ApplicationFiled: August 10, 2010Publication date: June 7, 2012Applicant: Liaisons Electroniques-Mecaniques LEM S.A.Inventors: Wolfram Teppan, Hiroshi Obata, Yori Hatakeyama
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Publication number: 20120111621Abstract: An object of the present invention is to provide a resin composition having excellent impregnation property into a base material and capable of producing a prepreg, metal-clad laminate and printed wiring board excellent in properties such as low warpage, flame resistance, low thermal expansion properties, drill processability and desmear resistance. A first resin composition comprises an epoxy resin, an irregular-shaped first inorganic filler and a second inorganic filler having an average particle diameter of 10 to 100 nm which is different from that of the first inorganic filler. A second resin composition comprises an epoxy resin, silicone rubber particles having an average particle diameter of 1 ?m to 10 ?m, boehmite particles having an average particle diameter of 0.2 ?m to 5 ?m, and silica nanoparticles having an average particle diameter of 10 nm to 100 nm.Type: ApplicationFiled: July 21, 2010Publication date: May 10, 2012Applicant: SUMITOMO BAKELITE COMPANY, LTD.Inventors: Noriyuki Ohigashi, Seiji Mori, Haruo Murakami, Akihiko Tobisawa, Hiroshi Obata, Takayoshi Masaki
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Publication number: 20110292316Abstract: A reflection sheet is made of material having a coefficient of thermal expansion different from that of an LED substrate. A fixing member and a retaining member extend through the reflection sheet and the LED substrate so as to fix the reflection sheet and the LED substrate. The reflection sheet includes a fixing hole into which the fixing member is inserted, a retaining hole into which the retaining member is inserted, and LED holes within which light emitting diodes are disposed, respectively. Retaining of the reflection sheet by the retaining member has, compared to fixing of the reflection sheet by the fixing member, a higher degree of freedom of movement in a direction along a surface of the reflection sheet. The LED holes located in positions far from the fixing hole are larger than the LED holes located in positions close to the fixing hole.Type: ApplicationFiled: May 24, 2011Publication date: December 1, 2011Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Makoto FUJIMOTO, Hiroshi OBATA
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Patent number: 8062558Abstract: This is to provide a conductive paste with higher electroconductivity containing, as raw materials: a metallic powder; a thermosetting resin; and a flux-activating compound having a carboxyl group and a phenolic hydroxyl group, which is applicable to the fine pitch-utilization.Type: GrantFiled: December 20, 2007Date of Patent: November 22, 2011Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Hiroshi Obata, Toshio Komiyatani
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Patent number: 8054400Abstract: The present invention prevents the corrosion of a printed circuit board which is connected to a lower side of a display panel in a liquid crystal display panel. In a display device which includes a display panel and a frame member which supports an outer peripheral portion of a display screen of a display panel, a water absorbing member is adhered to a surface of the frame member which faces the display panel in an opposed manner.Type: GrantFiled: February 19, 2010Date of Patent: November 8, 2011Assignee: Hitachi Displays, Ltd.Inventors: Masaki Tsubokura, Hiroshi Obata, Shunichi Matsumoto, Tsuyoshi Suzuki
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Publication number: 20110063540Abstract: Provided is a liquid crystal display device including a liquid crystal display panel, a fluorescent tube, a holder for retaining the fluorescent tube, and a frame to which the holder is attached. The holder includes an attachment portion for attaching to the frame, and a retaining portion for the fluorescent tube, the retaining portion extending from the attachment portion and facing the frame in a non-contact manner. The retaining portion and the frame have a space formed therebetween.Type: ApplicationFiled: September 9, 2010Publication date: March 17, 2011Inventors: Hiroshi OBATA, Shimon Itakura, Tadatomo Akutsu, Takashi Kato
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Publication number: 20100279114Abstract: The invention offers a method of manufacturing a prepreg capable of impregnating a fiber substrate with a liquid resin with a high degree of impregnation, and a prepreg obtained by this method. The invention is a method of manufacturing a prepreg by impregnating a long fiber substrate with a liquid resin using a kiss roller whose bottom portion is immersed in a liquid resin, including a step of impregnating the fiber substrate with a liquid resin from one surface thereof, by conveying the fiber substrate while maintaining contact with a circumferential surface of the kiss roller which is not immersed in resin, and performing this step at least twice in succession, and a prepreg obtained by this manufacturing method.Type: ApplicationFiled: November 15, 2006Publication date: November 4, 2010Applicant: Sumitomo Bakelite Co., Ltd.Inventors: Akihiko Tobisawa, Hiroshi Obata, Yoshiteru Urata
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Patent number: 7776105Abstract: An air-oxidative type hair dye composition containing a melanin precursor prepared by a process including (A) an oxidation step for converting, into the melanin precursor, a tyrosine or derivative thereof used as a starting substance with an enzyme or cell that is derived from a fungus selected from the group consisting of fungi belonging to the genera Aspergillus, Neurospora, Rhizomucor, Trichoderma, and Penicillium and that exhibits a catechol oxidase activity.Type: GrantFiled: December 6, 2005Date of Patent: August 17, 2010Assignees: Kao Corporation, Gekkeikan Sake Co., Ltd.Inventors: Kenzo Koike, Yoshinori Saito, Hiroshi Obata, Yukihiro Nakamura, Yoji Hata
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Publication number: 20100149455Abstract: The present invention prevents the corrosion of a printed circuit board which is connected to a lower side of a display panel in a liquid crystal display panel. In a display device which includes a display panel and a frame member which supports an outer peripheral portion of a display screen of a display panel, a water absorbing member is adhered to a surface of the frame member which faces the display panel in an opposed manner.Type: ApplicationFiled: February 19, 2010Publication date: June 17, 2010Inventors: Masaki TSUBOKURA, Hiroshi Obata, Shunichi Matsumoto, Tsuyoshi Suzuki
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Patent number: 7714955Abstract: The present invention provides a liquid crystal display device which reduces the occurrence of a squeal. A liquid crystal display device includes a liquid crystal display panel and a backlight arranged on a back surface of the liquid crystal display panel, wherein the backlight includes a base, a plurality of rod-shaped light sources arranged between the liquid crystal display panel and the base, electrode fittings for supporting electrode portions of the respective rod-shaped light sources, connection portions allowing the plurality of electrode fittings to be connected thereto and extending in the direction orthogonal to the longitudinal direction of the rod-shaped light sources, pushing members for pushing the connection portions toward a base side, and friction sound reducing members arranged between the connection portions and the pushing members and/or between the connection portions and the base side.Type: GrantFiled: June 3, 2009Date of Patent: May 11, 2010Assignee: IPS Alpha Technology, Ltd.Inventors: Masaki Tsubokura, Hiroshi Obata, Shunichi Matsumoto, Seigo Abo, Yuji Azuma
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Publication number: 20100083744Abstract: An inventive load apparatus for performance evaluation of a steering system has a simple construction and yet is capable of faithfully reproducing a tire load observed when the steering system is actually mounted on a motor vehicle. A compression load spring device (12) includes a piston (18) which is axially movable within a cylinder (17), and a pair of springs (20, 21) which resiliently urge the piston (18) to hold the piston (18) in a force balanced state at a neutral position in the cylinder. The piston (18) is connected to a rod (19) having one end (19a) serving as a load output portion. A load outputted from the load output portion (19a) is multiplied by a preset factor by means of a lever mechanism (13), and the resulting load is applied to the steering system (30).Type: ApplicationFiled: December 12, 2007Publication date: April 8, 2010Applicant: JTEKT CorporationInventors: Hiroshi Obata, Terutaka Tamaizumi
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Patent number: 7692732Abstract: The present invention prevents the corrosion of a printed circuit board which is connected to a lower side of a display panel in a liquid crystal display panel. In a display device which includes a display panel and a frame member which supports an outer peripheral portion of a display screen of a display panel, a water absorbing member is adhered to a surface of the frame member which faces the display panel in an opposed manner.Type: GrantFiled: February 8, 2007Date of Patent: April 6, 2010Assignee: Hitachi Displays, Ltd.Inventors: Masaki Tsubokura, Hiroshi Obata, Shunichi Matsumoto, Tsuyoshi Suzuki
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Publication number: 20100044648Abstract: This is to provide a conductive paste with higher electroconductivity containing, as raw materials: a metallic powder; a thermosetting resin; and a flux-activating compound having a carboxyl group and a phenolic hydroxyl group, which is applicable to the fine pitch-utilization.Type: ApplicationFiled: December 20, 2007Publication date: February 25, 2010Applicant: Sumitomo Bakelite Co., Ltd.Inventors: Hiroshi Obata, Toshio Komiyatani
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Publication number: 20090244435Abstract: The present invention provides a liquid crystal display device which reduces the occurrence of a squeal. A liquid crystal display device includes a liquid crystal display panel and a backlight arranged on a back surface of the liquid crystal display panel, wherein the backlight includes a base, a plurality of rod-shaped light sources arranged between the liquid crystal display panel and the base, electrode fittings for supporting electrode portions of the respective rod-shaped light sources, connection portions allowing the plurality of electrode fittings to be connected thereto and extending in the direction orthogonal to the longitudinal direction of the rod-shaped light sources, pushing members for pushing the connection portions toward a base side, and friction sound reducing members arranged between the connection portions and the pushing members and/or between the connection portions and the base side.Type: ApplicationFiled: June 3, 2009Publication date: October 1, 2009Inventors: Masaki Tsubokura, Hiroshi Obata, Shunichi Matsumoto, Seigo Abo, Yuji Azuma
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Patent number: 7590502Abstract: The testing apparatus tests a steering apparatus including a torque sensor which detects a steering torque, a steering actuator which applies a steering force to a steering mechanism, and a controller which controls the steering actuator based on an output of the torque sensor. The apparatus includes a test signal generating unit which generates a test signal of a sine sweep waveform simulating an output signal of the torque sensor, a driving signal generating unit which generates a driving signal according to the test signal generated by the test signal generating unit and supplies the driving signal to the steering actuator, and a torque signal monitoring unit which acquires a torque signal outputted from the torque sensor.Type: GrantFiled: March 17, 2008Date of Patent: September 15, 2009Assignee: JTEKT CorporationInventor: Hiroshi Obata
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Publication number: 20090178209Abstract: An air-oxidative type hair dye composition containing a melanin precursor prepared by a process including (A) an oxidation step for converting, into the melanin precursor, a tyrosine or derivative thereof used as a starting substance with an enzyme or cell that is derived from a fungus selected from the group consisting of fungi belonging to the genera Aspergillus, Neurospora, Rhizomucor, Trichoderma, and Penicillium and that exhibits a catechol oxidase activity.Type: ApplicationFiled: December 6, 2005Publication date: July 16, 2009Inventors: Kenzo Koike, Yoshinori Saito, Hiroshi Obata, Yukihiro Nakamura, Yoji Hata